Bulletin: 11 April 2015

From Gravesend….

 At 0730 today I noted radio conditions on the frequency bands we use would be poor – by checking the quick reference guide posted at http://www.reasignals.net/Local%20and%20DX%20Conditions.html

I flagged this up to the regular net participants that I would be listening on 80m as well as 60M, by email.

I heard Tom G4CMG call at that time with a test.  I then tested my set up on 60M see results below.

Technical Set Up Here

For this net I was going to be using a Web Based Software Defined Radio Located in Nantwich in Cheshire.  http://hackgreensdr.org to receive signals via a PC on the internet and I would be transmitting using a PRC320 running 200Watts on 60M.

I decided on this set up because local radio noise on HF is a feature here, which kills my receiver.  I have a continuous noise level around Strength 7 (S7) and usually anything over S8 I can hear with difficulty.  (I thought I was going deaf for a while 🙂

Most times signals are below the noise level.  I sussed out that people can hear me quite well as I can raise about 200 Watts now.

This noise problem is something I have not yet got round to resolving – busy day job.

Receiver in Cheshire, Transmitting from Gravesend – Full duplex. 

I have to say it worked very well – the Hack Green set up is located in a former nuclear bunker and these locations were pretty much designed for low noise operation by virtue of their location – away from noise sources and their shielding.  If you have never visited one – Go – it is a remarkable study into the cold war and the engineering that went into the design is an eye opener.

80 Meters – 3.722Mhz

I used my TS570D with about 60Watts with a Clansman noise cancelling microphone I was able to listen to the net at reasonable strength all round without headphones using the Web SDR to recieve.  I confirmed the noise conditions by alternating between the local receiver and the remote one.    Greta result see (or hear) the attached.

60 Meters – 5.371.5 Mhz

As predicted – not usable for Near Vertical Incidence Skywave up to 200 Miles at the time of day we normally operate.  At this link is a recording of the net which lasts for approx ten minutes.  Very interesting…. 

Other Business

This email  was sent to all branch members who have registered an interest or are a registered amateur radio operator with the branch.  If you do not want to receive it then please let me know.

Your feedback will be useful.  I am interested in whether you think it should be extend to all of the branch members as I have limited the distribution to radio amateurs only and used blind carbon copy to conceal our email addresses.  If you would like your email address to be made know to fellow branch members or not it would be useful to know – it kind of defeats the object of the branch if we hide our identities from each other.

Mac 2E0ATZ is proposing a special event to mark VE Day at the RE Museum in Chatham in June – if you are interested in doing a radio stag J please let me know.


About admin

Enigmatic to the core I went to school in Bolton and Manchester and ended up joining up at Manchester in '69 enlisting in the corps of Royal Engineers. My aspirations were quite vague at that age and I was persuaded to drive for a living and occasionally operate radios instead of flying fighter planes:). Having then learnt my trade and obtaining my centurion tank driving licence, my early career saw plenty of action on Soltau tank ranges and the obligatory tours as a radio op in the infantry and engineer roles in Northern Ireland -2 years all in. Operating the radio took my fancy (even after a four month tour following a super fit troop commander around on patrols with a 43 pound radio on my back) - it was something I would eventually be able to teach. After 20 years I ended up in the position of QMSI (look it up) before diversifying into an IT Role with HQ Engineer in Chief. This was early days for IT in the RE and having studied it in my spare time to an acceptable level - aided and abetted by an elmer with excellent skills on the BBC Micro (G3WOV, See also below) and the Nienburg Computer and Electronics Club, eventually I became a CIS WO - one of the first in the corps with any Command, Control, Communication and Information Systems Experience - qualifying as a systems analyst and amongst other things, training at the school of military survey in Geographical Information Systems. In the history of the corps IT was so new at this time, the laptop was only just becoming cheap enough to afford and there weren't many people around who had one in the military. But when the UN went into Bosnia it became an essential tool no officer could be seen without. When this was realised I ended up purchasing a roulement scale of IT kit and devising the first ever Windows and office software training course in the RE, and then delivering it as pre tour training package - with Alan Lewis (Wordperfect, SuperCalc and Paradox). It was in those days that Alan Lewis introduced me to CIX and Compuserve. (No internet, just dial up bulletin boards then). Interestingly when TCPIP took off with email I was offered shares fairly early on in Demon Internet - oh how I wish I had taken that up. There was then this period when data communications became fashionable and I remember working a rear link via 300 baud packet between Chattenden Barracks and the Falkland Islands in the early nineties. At least three hundred packets got through before the novelty wore off:) Not much of a record, but interesting to see how packet took off and declined in quite a short space of time and how TCP\IP has flourished - so much so that the address space has already filled up when it wasn't supposed to:) I took up amateur radio whilst serving at Tidworth in '78 due mainly to a great elmer, G3WOV. Here, besides breaking my leg and taking up shortwave listening, I did four jobs of note; Detachment to Cheshire Police HQ during fire strike - signals corporal, Married Gillian, passed the REA and Morse test and promptly after that found myself abroad monitoring a ceasefire in Rhodesia. The newly acquired radio licence came in handy as they kindly lent me a brand new PRC320 with which to practice on during those lonely nights in the bush (and live ammo). See here http://5820-99-114.com/TCRU/?cat=48 - After that I spent the next 10 years in 21 Engineer Regiment in Germany where I held and used the callsign DA1CY and then DA2DI (on the second tour). Occasionally purloining the CLANSMAN Kit for the odd QSO. While stationed in Nienburg I had the lovely experience of raising my daughter - Sammy and on the second tour my son Tom was born. They reckon it was something in the water. While here on the first tour I had a sked with VP8API (look it up) on 1.10.82. Ian was on tour clearing up after the Falklands war. Interestingly - while calling him on my 100 watt TS120S transceiver and dipole I was called back by 4K1A in Antarctica. I could not believe he gave me five and nine. The cold war being what it was I think the operator was curious because he was asking me where my friend was - (not obvious). Between tours in Nienburg I had the great pleasure of teaching TA Soldiers in 75 Engineer Regiment (V) radio skills - I think I took away as much learning as I imparted. Worked PRC349 to PRC349 from Snowdon to the Cat and Fiddle in Cheshire on Whip Antenna for a bet (work that one out). One memorable part of this was spending a great deal of time designing computer software with a really good RSO who could program in Basic to generate Slidex and MAPCO Keys. We finally nailed what must have been the most boring job in the army, and then they supersede it with BATCO. I had the job of converting the regiment to that. While living in Failsworth, I encountered a lifelong friend, Ian, G6TGO for the first time. We have had occasional skeds ever since - we are still trying to get the 351/2 to work between Gravesend and Manchester - (Close). Notably on my second tour in Nienburg I got the time to practice combat engineering in between radio stags and having got the hang of command and control using BATCO which was fraught, I analysed the radio messages we were sending during an exercise and noted how much time it would save if we formatted them differently - BATCO was a problem and it was costing the corps days and hours it would not afford in a war. On realising this I produced the first Engineer Secure Orders Cards (ESOCS) on my Amstrad PC using DTP. Uncannily surreal, but I also lived for a time in the same flat as Spike, G4AKQ but ten years or so later, and then after becoming good friends with him even more years later I discovered we had that in common when I read the address on his QSL Card. Now settled in Gravesend I had the honour to further serve in both the police and the NHS. Firstly as a network manager - how cool? Straight out of the army and straight into a network manager's job with the same money and a half again. Then one day I spotted a project of note with the police, as technical lead on a county wide rollout project for their Digital AIRWAVE Radio system. How time flies, they are now planning its replacement. Since then I have had many exploits with cost saving IT Projects for the NHS and I can see them replacing some of those systems soon. It will soon be time to retire however not before I save them another few million. Now I work for a mental health trust - I can see both sides of that particular coin having acquired a little black dog at some time in my career, which is not uncommon - I am so glad mental health and the military mindset have become hot topics for discussion :) Check me out on Facebook and LinkedIn. My favourite quote: "What the fcuk do the engineers know about IT and communications?" Will let you guess where that one came from :). Having used and taught LARKSPUR, CLANSMAN, and now glimpsed the Bowman Radio Systems (which was being specified as I was in EinC) I realise that just about everything I have worked on in the Army, BATCO, MAPCO, Slidex, Griddle, VP, SOCs Morse Code, Map reading and Marking skills have been digitised and encrypted to the Nth degree. That's why I am creating a digital record, - before I become obsolete myself or worse - TRON.
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